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MAINTENANCE PROCEDURE
6.
Place a container under drain valve (4) on the radiator side
to receive the coolant.
7.
Open drain valve (4) to drain the coolant.
8.
After draining the coolant, close drain valve (4) and add
city water.
Pour water until it fills the radiator.
9.
Start the engine.
For details of starting the engine, see OPERATION,
"METHOD FOR OPERATIONS AND CHECKS BEFORE
STARTING ENGINE (3-169)" and "METHOD FOR START-
ING ENGINE (3-171)".
10. Set the swing lock switch to ON position (a) and check that
the swing lock pilot lamp is lit.
11. To complete the warm-up operation of the hydraulic equipment more quickly, set the working mode to P
mode (heavy-duty mode).
For the details of the working mode setting procedure, see
"METHOD FOR SELECTING WORKING MODE (3-193)".
12. Move the lock lever slowly and steadily to FREE position
(F), then raise the bucket from the ground.
4-22
MAINTENANCE
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